All Impreza models are powered by a 148-hp 2.0-liter Subaru BOXER engine and feature standard Symmetrical All-Wheel Drive. For 2015, the Lineartronic CVT is now standard for the Premium and Limited trims and it has been tuned to provide a more natural stepped shift pattern. A 5-speed manual continues as standard in the base 2.0i and the Sport Premium trims.